<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>2d physics engine</title>
  <style>
    .main {
      width: 800px;
      margin: 0 auto;
    }

    #canvas {
      border: 1px solid #ccc;
    }

    .toolbar {
      width: 100%;
    }
  </style>
</head>
<body>
  <div class="main">
    <canvas id="canvas" width="800" height="600"></canvas>
  </div>
  <script src="src/main.ts"></script>
</body>
</html>